[ John Farmer wrote in 060116 MMDigest:
> I am trying to lighten an early 65-note Steck upright which needs
> to be stood on end to get out of its present location.  ... I have
> found the fixings for the stack, but I can't drop it far because of
> the exhausters and reservoir.  I can't slide it straight forwards
> because of the wires attached to the pneumatics.  I can't get at the
> leather nuts on the bottom ends of the wires, also because of the
> exhausters, etc.

Hi John, I sympathise with you -- we restored a similar instrument 
a year or so ago.  Tip it over on its back (on, say, a stringing bench)
and you should find you can unscrew the whole bottom of the piano.
You can then easily remove the feeders, reservoir, stack, etc.

Hope this helps!
David Evans